import { Column, Entity, ManyToMany, ManyToOne, PrimaryGeneratedColumn } from 'typeorm';
import { Copy } from './copy';
import { Site } from './site';

/**
 * This entity describes an external source of a copy, in most cases that is a website.
 */
@Entity()
export class Source implements IIdentifiableEntity {
  @PrimaryGeneratedColumn()
  public id: number;

  /**
   * the uri to the sauce
   */
  @Column({
    nullable: false,
  })
  public uri: string;

  /**
   * the site connected to the source
   */
  @ManyToOne(() => Site, (site: Site) => site.sources, {
    nullable: true,
    onDelete: 'RESTRICT',
    onUpdate: 'CASCADE',
  })
  public site: Promise<Site>;

  /**
   * the copies which can be found here
   */
  @ManyToMany(() => Copy, (copy: Copy) => copy.sources)
  public copies: Promise<Copy[]>;
}